Martyrs create faith, faith does not create martyrs.

A lot of good arguments are spoiled by some fool who knows what he is talking about.

Those who say they believe in God and yet neither love nor fear Him, do not in fact believe in Him but in those who have taught them that God exists. Those who believe that they believe in God, but without any passion in their heart, any anguish of mind, without uncertainty, without doubt, without an element of despair even in their consolation, believe only in the God-idea, not in God.

Science teaches us, in effect, to submit our reason to the truth and to know and judge of things as they are-that is to say, as they themselves choose to be and not as we would have them to be.

The will, the will not ever to die, the refusal to resign oneself to death, ceaselessly builds the house of life while the keen blasts and icy winds of reason unceasingly batter at the structure and beat it down.

These terrible sociologists, who are the astrologers and alchemists of our twentieth century.

Science is a cemetary of dead ideas.